T
Serves its purpose
It's not as quiet as I would like, but it's a lot better than doing mouthpiece exercises without it.
The exercises suggested in the little manual and CD are really difficult to do though and it's not very clear to someone trying on their own what they could be doing wrong.
The exercises suggested in the little manual and CD are really difficult to do though and it's not very clear to someone trying on their own what they could be doing wrong.
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